Sorry for my bad english, hope it make sense
OK, so your 24/2 is different from others in this thread, though still common. In your situation, you have two general options; the simplest (in function) being to only use the 24T wheel and grind one tooth off, making it a 24-1 wheel at cam speed. Using Missing Tooth (Cam) decoder, this supports all of the modes from batch fuel/waste-spark to full sequential fuel and spark. The /2 sensors would be grounded.
Either method (24-1 cam or 12/1 crank) will require the same cranking rotation to find the cycle signal (gap or pulse) of up to 720°. The only ways to shorten sync would be to run a batch-mode decoder such as 12-1 crank speed, that would find sync in under 360°; or 4T distributor mode requiring no sync. Again it could not do full-sequential fuel or spark, but would find sync quicker on-average, and would be useful for batch/waste setups that do not need to know where cylinder #1 is — including 'double-shot' sequential on a paired-injector 12-1 setup.
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